/Engine/Source/Runtime/Engine/Classes/Engine/World.h
True if Actor would encroach at TestLocation on something that blocks it. Returns a ProposedAdjustment that might result in an unblocked TestLocation.
bool EncroachingBlockingGeometry ( const [AActor](API\Runtime\Engine\GameFramework\AActor) * TestActor, FVector TestLocation, FRotator TestRotation, FVector * ProposedAdjustment )